The following devices are in accordance with DIN SPEC 91064:
Standard DIN SPEC 91064
ZSH 2090 Pencil Hardness Tester
Hardness tester according to Wolff-Wilborn for determination of resistance of coatings to mechanical stress by pencils of different hardness.
ZHT 2092 - 2093 Pocket Hardness Testers
Pocket testers for hardness tests on flat and curved surfaces.
ZST 2095 Mar Resistance Tester
Pocket tester for determination of scratch resistance on painted or plastic surfaces.
